Things You'll Need:
- Book containing Cambridge Glass patterns
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Step 1
Look for markings: Glass markings are usually found in the center of the underside of the piece. Occasionally, the marking will appear on the center of the stem on stemware or inside the bowl of a piece. Regardless of where it is found, the marking will appear as a raised area with letters, numbers or symbols.
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Step 2
Check to see if the mark indicates Cambridge Glass: Cambridge glass used two marks to identify its products. Prior to 1920, the Cambridge Glass Company marked glass with "NEAR CUT"; after 1920 the glass was marked with a "C" inside of an inverted triangle.
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Step 3
Attempt to identify the pattern: Many books available offer descriptions and photographs of complete lists of Cambridge Glass patterns. Use these books to determine if the pattern you are looking at was manufactured by Cambridge Glass.
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Step 4
Check the piece type for the pattern: Guide books will list each piece made with a given pattern. Once you have identified the patter,n check that Cambridge made that piece (goblet, sugar bowl, etc.) in that pattern. If the information does not match, then either the pattern has not been properly identified or the piece you are looking at is a fake.
